From: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Date: Mon, 21 May 2018 17:25:46 -0700
Subject: drm/i915/icl: Calculate link clock using the new registers
Git-commit: 5428bf5a9a9f28fae1ba2c57ba4ea8f8d358d10c
Patch-mainline: v4.19-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Start using the new registers for ICL and on.
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180522002558.29262-13-paulo.r.zanoni@intel.com
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/i915/intel_ddi.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/i915/intel_ddi.c
+++ b/drivers/gpu/drm/i915/intel_ddi.c
@@ -1345,8 +1345,13 @@ static int cnl_calc_wrpll_link(struct dr
uint32_t cfgcr0, cfgcr1;
uint32_t p0, p1, p2, dco_freq, ref_clock;
- cfgcr0 = I915_READ(CNL_DPLL_CFGCR0(pll_id));
- cfgcr1 = I915_READ(CNL_DPLL_CFGCR1(pll_id));
+ if (INTEL_GEN(dev_priv) >= 11) {
+ cfgcr0 = I915_READ(ICL_DPLL_CFGCR0(pll_id));
+ cfgcr1 = I915_READ(ICL_DPLL_CFGCR1(pll_id));
+ } else {
+ cfgcr0 = I915_READ(CNL_DPLL_CFGCR0(pll_id));
+ cfgcr1 = I915_READ(CNL_DPLL_CFGCR1(pll_id));
+ }
p0 = cfgcr1 & DPLL_CFGCR1_PDIV_MASK;
p2 = cfgcr1 & DPLL_CFGCR1_KDIV_MASK;